A car is a motor vehicle that is used to transport people or goods. The main purpose of the car is to carry out transportation work. A modern car consists of 15 to 20,000 parts, of which 150 to 300 are the most important and have the highest operating costs. Despite the large number of cars produced, your device can always be divided into three main parts: the chassis (consisting of: gearbox, chassis and control mechanisms – steering and braking systems), the body (used to hold people or goods) and the engine.